import numpy as np
x = [1, 2, 3]
y = [4, 5, 6, 7]
xy = zip(x, y)
print(list(xy))

x = [1, 2, 3]
x = zip(x)
print(list(x))

x = zip()
print(list(x))

u = [(1, 4), (2, 5), (3, 6)]
print(list(zip(*u)))

x = [1, 2, 3]
r = zip(* [x] * 3)
print(list(r))





